Buggy code:
public final class DefaultListableBeanFactoryTests { private static final Log factoryLog = LogFactory . getLog ( DefaultListableBeanFactory . class ) ; @ Test public void testUnreferencedSingletonWasInstantiated ( ) { } @ Test public void testLazyInitialization ( ) { } @ Test public void testFactoryBeanDidNotCreatePrototype ( ) { } @ Test public void testPrototypeFactoryBeanIgnoredByNonEagerTypeMatching ( ) { } @ Test public void testPrototypeSingletonFactoryBeanIgnoredByNonEagerTypeMatching ( ) { } @ Test public void testNonInitializedFactoryBeanIgnoredByNonEagerTypeMatching ( ) { } @ Test public void testInitializedFactoryBeanFoundByNonEagerTypeMatching ( ) { } @ Test public void testStaticFactoryMethodFoundByNonEagerTypeMatching ( ) { } @ Test public void testStaticPrototypeFactoryMethodFoundByNonEagerTypeMatching ( ) { } @ Test public void testNonStaticFactoryMethodFoundByNonEagerTypeMatching ( ) { } @ Test public void testNonStaticPrototypeFactoryMethodFoundByNonEagerTypeMatching ( ) { } @ Test public void testEmpty ( ) { } @ Test public void testEmptyPropertiesPopulation ( ) { } @ Test public void testHarmlessIgnorableRubbish ( ) { } @ Test public void testPropertiesPopulationWithNullPrefix ( ) { } @ Test public void testPropertiesPopulationWithPrefix ( ) { } @ Test public void testSimpleReference ( ) { } @ Test public void testPropertiesWithDotsInKey ( ) { } @ Test public void testUnresolvedReference ( ) { } @ Test public void testSelfReference ( ) { } @ Test public void testPossibleMatches ( ) { } @ Test public void testPrototype ( ) { } @ Test public void testPrototypeCircleLeadsToException ( ) { } @ Test public void testPrototypeExtendsPrototype ( ) { } @ Test public void testCanReferenceParentBeanFromChildViaAlias ( ) { } @ Test public void testNameAlreadyBound ( ) { } private void testSingleTestBean ( ListableBeanFactory lbf ) { } @ Test public void testBeanDefinitionOverriding ( ) { } @ Test public void testBeanDefinitionRemoval ( ) { } @ Test public void testBeanDefinitionOverridingNotAllowed ( ) { } @ Test public void testBeanDefinitionOverridingWithAlias ( ) { } @ Test public void testAliasChaining ( ) { } @ Test public void testBeanReferenceWithNewSyntax ( ) { } @ Test public void testCanEscapeBeanReferenceSyntax ( ) { } @ Test public void testCustomEditor ( ) { } @ Test public void testCustomConverter ( ) { DefaultListableBeanFactory lbf = new DefaultListableBeanFactory ( ) ; <START_BUG> GenericConversionService conversionService = ( ( GenericConversionService ) ( ConversionServiceFactory . createDefault ( ) ) ) ; <END_BUG> conversionService . addConverter ( new org . springframework . core . convert . converter . Converter < String , Float > ( ) { public Float convert ( String source ) { try { NumberFormat nf = NumberFormat . getInstance ( Locale . GERMAN ) ; return nf . parse ( source ) . floatValue ( ) ; } catch ( ParseException ex ) { throw new IllegalArgumentException ( ex ) ; } } } ) ; lbf . setConversionService ( conversionService ) ; MutablePropertyValues pvs = new MutablePropertyValues ( ) ; pvs . add ( "myFloat" , "1,1" ) ; lbf . registerBeanDefinition ( "testBean" , new org . springframework . beans . factory . support . RootBeanDefinition ( TestBean . class , pvs ) ) ; TestBean testBean = ( ( TestBean ) ( lbf . getBean ( "testBean" ) ) ) ; assertTrue ( ( ( testBean . getMyFloat ( ) . floatValue ( ) ) == 1.1F ) ) ; } @ Test public void testCustomEditorWithBeanReference ( ) { } @ Test public void testCustomTypeConverter ( ) { } @ Test public void testCustomTypeConverterWithBeanReference ( ) { } @ Test public void testRegisterExistingSingletonWithReference ( ) { } @ Test public void testRegisterExistingSingletonWithNameOverriding ( ) { } @ Test public void testRegisterExistingSingletonWithAutowire ( ) { } @ Test public void testRegisterExistingSingletonWithAlreadyBound ( ) { } @ Test public void testReregisterBeanDefinition ( ) { } @ Test public void testArrayPropertyWithAutowiring ( ) throws MalformedURLException { } @ Test public void testArrayPropertyWithOptionalAutowiring ( ) throws MalformedURLException { } @ Test public void testArrayConstructorWithAutowiring ( ) { } @ Test public void testArrayConstructorWithOptionalAutowiring ( ) { } @ Test public void testDoubleArrayConstructorWithAutowiring ( ) throws MalformedURLException { } @ Test public void testDoubleArrayConstructorWithOptionalAutowiring ( ) throws MalformedURLException { } @ Test public void testAutowireWithNoDependencies ( ) { } @ Test public void testAutowireWithSatisfiedJavaBeanDependency ( ) { } @ Test public void testAutowireWithSatisfiedConstructorDependency ( ) { } @ Test public void testAutowireWithTwoMatchesForConstructorDependency ( ) { } @ Test public void testAutowireWithUnsatisfiedConstructorDependency ( ) { } @ Test public void testAutowireConstructor ( ) { } @ Test public void testAutowireBeanByName ( ) { } @ Test public void testAutowireBeanByNameWithDependencyCheck ( ) { } @ Test public void testAutowireBeanByNameWithNoDependencyCheck ( ) { } @ Test public void testAutowireBeanByType ( ) { } @ Test public void testAutowireBeanWithFactoryBeanByType ( ) { } @ Test ( expected = TypeMismatchException . class ) public void testAutowireBeanWithFactoryBeanByName ( ) { } @ Test public void testAutowireBeanByTypeWithTwoMatches ( ) { } @ Test public void testAutowireBeanByTypeWithDependencyCheck ( ) { } @ Test public void testAutowireBeanByTypeWithNoDependencyCheck ( ) { } @ Test public void testAutowireExistingBeanByName ( ) { } @ Test public void testAutowireExistingBeanByNameWithDependencyCheck ( ) { } @ Test public void testAutowireExistingBeanByNameWithNoDependencyCheck ( ) { } @ Test public void testAutowireExistingBeanByType ( ) { } @ Test public void testAutowireExistingBeanByTypeWithDependencyCheck ( ) { } @ Test public void testAutowireExistingBeanByTypeWithNoDependencyCheck ( ) { } @ Test public void testInvalidAutowireMode ( ) { } @ Test public void testApplyBeanPropertyValues ( ) { } @ Test public void testApplyBeanPropertyValuesWithIncompleteDefinition ( ) { } @ Test public void testConfigureBean ( ) { } @ Test public void testConfigureBeanWithAutowiring ( ) { } @ Test public void testExtensiveCircularReference ( ) { } @ Test public void testCircularReferenceThroughAutowiring ( ) { } @ Test public void testCircularReferenceThroughFactoryBeanAutowiring ( ) { } @ Test public void testCircularReferenceThroughFactoryBeanTypeCheck ( ) { } @ Test public void testAvoidCircularReferenceThroughAutowiring ( ) { } @ Test public void testBeanDefinitionWithInterface ( ) { } @ Test public void testBeanDefinitionWithAbstractClass ( ) { } @ Test public void testPrototypeFactoryBeanNotEagerlyCalled ( ) { } @ Test public void testLazyInitFactory ( ) { } @ Test public void testSmartInitFactory ( ) { }

Fix:
GenericConversionService conversionService = ( ( GenericConversionService ) ( ConversionServiceFactory . createDefaultConversionService ( ) ) ) ;